Operator Search: 'Free Data' not available in Blender 2.9 anymore?
The default behavior of the Operator Search dialog in 2.9x is to only list the operators that can be found in menus. In order to search for all registered operators, you currently have to enable the Developer Extras option in the preferences.

Open the preferences Edit &gt; Preferences
Switch to the Interface tab
Enable Developer Extras

For more information take a look at the design tasks T76227 and T74157.